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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 4 |
| 1949 | 2 |
| 1950 | 4 |
| 1951 | 1 |
| 1952 | 3 |
| 1954 | 2 |
| 1955 | 1 |
| 1957 | 3 |
| 1958 | 6 |
| 1959 | 9 |
| 1960 | 5 |
| 1961 | 6 |
| 1962 | 23 |
| 1963 | 12 |
| 1964 | 22 |
| 1965 | 15 |
| 1966 | 17 |
| 1967 | 15 |
| 1968 | 12 |
| 1969 | 18 |
| 1970 | 21 |
| 1971 | 21 |
| 1972 | 29 |
| 1973 | 39 |
| 1974 | 50 |
| 1975 | 55 |
| 1976 | 46 |
| 1977 | 50 |
| 1978 | 76 |
| 1979 | 70 |
| 1980 | 57 |
| 1981 | 72 |
| 1982 | 69 |
| 1983 | 77 |
| 1984 | 112 |
| 1985 | 114 |
| 1986 | 113 |
| 1987 | 128 |
| 1988 | 124 |
| 1989 | 148 |
| 1990 | 151 |
| 1991 | 185 |
| 1992 | 164 |
| 1993 | 205 |
| 1994 | 242 |
| 1995 | 218 |
| 1996 | 243 |
| 1997 | 256 |
| 1998 | 256 |
| 1999 | 341 |
| 2000 | 330 |
| 2001 | 408 |
| 2002 | 434 |
| 2003 | 503 |
| 2004 | 638 |
| 2005 | 699 |
| 2006 | 860 |
| 2007 | 849 |
| 2008 | 972 |
| 2009 | 1074 |
| 2010 | 1229 |
| 2011 | 1262 |
| 2012 | 1333 |
| 2013 | 1428 |
| 2014 | 1417 |
| 2015 | 1524 |
| 2016 | 1488 |
| 2017 | 1565 |
| 2018 | 1544 |
| 2019 | 1622 |
| 2020 | 1909 |
| 2021 | 2375 |
| 2022 | 2290 |
| 2023 | 567 |